vnt_receive_frame which replaces device_receive_frame
and vnt_rx_data which handles mac80211 rx data
structures ieee80211_hw, ieee80211_vif and variable rx_rate are added
in structure vnt_private
---
drivers/staging/vt6655/device.h | 6 +-
drivers/staging/vt6655/device_main.c | 13 ++--
drivers/staging/vt6655/dpc.c | 123 +++++++++++++++++++++++++++++++++++
drivers/staging/vt6655/dpc.h | 2 +
4 files changed, 137 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/vt6655/device.h b/drivers/staging/vt6655/device.h
index ab6be41..33b4215 100644
--- a/drivers/staging/vt6655/device.h
+++ b/drivers/staging/vt6655/device.h
@@ -57,6 +57,7 @@
#include <linux/reboot.h>
#include <linux/ethtool.h>
/* Include Wireless Extension definition and check version - Jean II */
+#include <net/mac80211.h>
#include <linux/wireless.h>
#include <net/iw_handler.h> // New driver API
@@ -327,7 +328,9 @@ typedef struct __device_opt {
struct vnt_private {
struct pci_dev *pcid;
-
+ /* mac80211 */
+ struct ieee80211_hw *hw;
+ struct ieee80211_vif *vif;
// netdev
struct net_device *dev;
@@ -386,6 +389,7 @@ struct vnt_private {
u32 flags;
u32 rx_buf_sz;
+ u8 rx_rate;
int multicast_limit;
pid_t MLMEThr_pid;
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index c8f262f..c8ee91c 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -1336,7 +1336,7 @@ static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx)
pRD = pRD->next) {
if (works++ > 15)
break;
- if (device_receive_frame(pDevice, pRD)) {
+ if (vnt_receive_frame(pDevice, pRD)) {
if (!device_alloc_rx_buf(pDevice, pRD)) {
dev_err(&pDevice->pcid->dev,
"can not allocate rx buf\n");
@@ -1344,7 +1344,6 @@ static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx)
}
}
pRD->m_rd0RD0.f1Owner = OWNED_BY_NIC;
- pDevice->dev->last_rx = jiffies;
}
pDevice->pCurrRD[uIdx] = pRD;
@@ -1360,9 +1359,12 @@ static bool device_alloc_rx_buf(struct vnt_private *pDevice, PSRxDesc pRD)
if (pRDInfo->skb == NULL)
return false;
ASSERT(pRDInfo->skb);
- pRDInfo->skb->dev = pDevice->dev;
- pRDInfo->skb_dma = pci_map_single(pDevice->pcid, skb_tail_pointer(pRDInfo->skb),
- pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
+
+ pRDInfo->skb_dma =
+ pci_map_single(pDevice->pcid,
+ skb_put(pRDInfo->skb, skb_tailroom(pRDInfo->skb)),
+ pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
+
*((unsigned int *)&(pRD->m_rd0RD0)) = 0; /* FIX cast */
pRD->m_rd0RD0.wResCount = cpu_to_le16(pDevice->rx_buf_sz);
@@ -1380,7 +1382,6 @@ bool device_alloc_frag_buf(struct vnt_private *pDevice,
if (pDeF->skb == NULL)
return false;
ASSERT(pDeF->skb);
- pDeF->skb->dev = pDevice->dev;
return true;
}
diff --git a/drivers/staging/vt6655/dpc.c b/drivers/staging/vt6655/dpc.c
index eecf6f5..d91771f 100644
--- a/drivers/staging/vt6655/dpc.c
+++ b/drivers/staging/vt6655/dpc.c
@@ -1312,3 +1312,126 @@ static bool s_bAPModeRxData(
return true;
}
+
+static bool vnt_rx_data(struct vnt_private *priv, struct sk_buff *skb,
+ u16 bytes_received)
+{
+ struct ieee80211_hw *hw = priv->hw;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_rx_status rx_status = { 0 };
+ struct ieee80211_hdr *hdr;
+ __le16 fc;
+ u8 *rsr, *new_rsr, *rssi;
+ __le64 *tsf_time;
+ u16 frame_size;
+ int ii, r;
+ u8 *rx_sts, *rx_rate, *sq;
+ u8 *skb_data;
+ u8 rate_idx = 0;
+ u8 rate[MAX_RATE] = {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108};
+ long rx_dbm;
+
+ /* [31:16]RcvByteCount ( not include 4-byte Status ) */
+ frame_size = le16_to_cpu(*((__le16 *)(skb->data + 2)));
+ if (frame_size > 2346 || frame_size < 14) {
+ dev_dbg(&priv->pcid->dev, "------- WRONG Length 1\n");
+ return false;
+ }
+
+ skb_data = (u8 *)skb->data;
+
+ rx_sts = skb_data;
+ rx_rate = skb_data + 1;
+
+ sband = hw->wiphy->bands[hw->conf.chandef.chan->band];
+
+ for (r = RATE_1M; r < MAX_RATE; r++) {
+ if (*rx_rate == rate[r])
+ break;
+ }
+
+ priv->rx_rate = r;
+
+ for (ii = 0; ii < sband->n_bitrates; ii++) {
+ if (sband->bitrates[ii].hw_value == r) {
+ rate_idx = ii;
+ break;
+ }
+ }
+
+ if (ii == sband->n_bitrates) {
+ dev_dbg(&priv->pcid->dev, "Wrong RxRate %x\n", *rx_rate);
+ return false;
+ }
+
+ tsf_time = (__le64 *)(skb_data + bytes_received - 12);
+ sq = skb_data + bytes_received - 4;
+ new_rsr = skb_data + bytes_received - 3;
+ rssi = skb_data + bytes_received - 2;
+ rsr = skb_data + bytes_received - 1;
+
+ RFvRSSITodBm(priv, *rssi, &rx_dbm);
+
+ priv->byBBPreEDRSSI = (u8)rx_dbm + 1;
+ priv->uCurrRSSI = priv->byBBPreEDRSSI;
+
+ skb_pull(skb, 4);
+ skb_trim(skb, frame_size);
+
+ rx_status.mactime = le64_to_cpu(*tsf_time);
+ rx_status.band = hw->conf.chandef.chan->band;
+ rx_status.signal = rx_dbm;
+ rx_status.flag = 0;
+ rx_status.freq = hw->conf.chandef.chan->center_freq;
+
+ hdr = (struct ieee80211_hdr *)(skb->data);
+ fc = hdr->frame_control;
+
+ rx_status.rate_idx = rate_idx;
+
+ if (ieee80211_has_protected(fc)) {
+ if (priv->byLocalID > REV_ID_VT3253_A1)
+ rx_status.flag = RX_FLAG_DECRYPTED;
+ }
+
+ if (priv->vif && priv->bDiversityEnable) {
+ if (ieee80211_is_data(fc) &&
+ (frame_size > 50) && priv->vif->bss_conf.assoc)
+ BBvAntennaDiversity(priv, priv->rx_rate, 0);
+ }
+
+ memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
+
+ ieee80211_rx_irqsafe(priv->hw, skb);
+
+ return true;
+}
+
+bool vnt_receive_frame(struct vnt_private *priv, PSRxDesc curr_rd)
+{
+ PDEVICE_RD_INFO rd_info = curr_rd->pRDInfo;
+ struct sk_buff *skb;
+ u16 frame_size;
+
+ skb = rd_info->skb;
+
+ pci_unmap_single(priv->pcid, rd_info->skb_dma,
+ priv->rx_buf_sz, PCI_DMA_FROMDEVICE);
+
+ frame_size = le16_to_cpu(curr_rd->m_rd1RD1.wReqCount)
+ - cpu_to_le16(curr_rd->m_rd0RD0.wResCount);
+
+ if ((frame_size > 2364) || (frame_size < 33)) {
+ /* Frame Size error drop this packet.*/
+ dev_dbg(&priv->pcid->dev, "Wrong frame size %d\n", frame_size);
+ dev_kfree_skb_irq(skb);
+ return true;
+ }
+
+ if (vnt_rx_data(priv, skb, frame_size))
+ return true;
+
+ dev_kfree_skb_irq(skb);
+
+ return true;
+}
diff --git a/drivers/staging/vt6655/dpc.h b/drivers/staging/vt6655/dpc.h
index a068b84..09cbbac 100644
--- a/drivers/staging/vt6655/dpc.h
+++ b/drivers/staging/vt6655/dpc.h
@@ -39,4 +39,6 @@ device_receive_frame(
PSRxDesc pCurrRD
);
+bool vnt_receive_frame(struct vnt_private *priv, PSRxDesc curr_rd);
+
#endif // __RXTX_H__
--
1.9.1
--
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